Warning notices about the pizza’s extreme heat have been put out and caution tape has been wrapped around the counters. There is also a warning sticker on the pizza itself.

Store manager Ben Daley said: “A few of our customers who are chilli fans have been telling us that they don’t get the extreme heat they are after when eating regular pizzas, so we thought we’d make something for Hallowe’en with more of a kick.

“We’ve worked with our British chilli grower to grow these extreme heat chillies and our pizza counter staff are now on standby in their protective gear to make the pizzas up.”

PROTECTION: The pizza is so hot it needs a safety warning (Photo: Warren Gunn)

Morrisons said customers eating the pizza could expect their tongue to go numb first, with talking becoming difficult, followed by a burning sensation in the mouth. The eyes and nose would start running with most people becoming hot and sweaty. Some would feel euphoric as chillies can generate an endorphin rush.